waterproofing exterior of foundation

Monty · 06-12-2007, 12:05 AM

Hi,

Just wondering if any of you have ever had to waterproof your foundation?

If so,

What products/method did you use? We have some divets and a crack at the bottom where the foundation meets the footing. We have tried interior repair first but to no avail. Now it's down and dirty time. Any suggestions would be welcome.

johnny331 · 06-12-2007, 08:57 PM

have you/will you replace the old drain tile with pvc? be sure to go all out on the backfilling of stone/grave/engineered fill... double or triple (or more) what code wants if you can afford it. you can never have too much stone to faciliate quick drainage...

they use tar of course, and some other stuff they mix up almost like a mortar...

concretemasonry · 06-12-2007, 10:19 PM

Need more details to give you a good answer.

Have you done all of the normal necessary items to keep water away from the foundation like gutters, long (10') downspout extensions and positive drainage away from the house?

What type of foundation? - Concrete? concrete block?

Where is the water coming in?

What is a "divet"?

After you have done the exterior iems, you can seal the joint between the foundation wall and the concrete floor. - Are you in the east where they have a funny and now non-code trench around the concrete slab?

Monty · 06-12-2007, 11:45 PM

Quote:

Originally Posted by johnny331

have you/will you replace the old drain tile with pvc? be sure to go all out on the backfilling of stone/grave/engineered fill... double or triple (or more) what code wants if you can afford it. you can never have too much stone to faciliate quick drainage...

they use tar of course, and some other stuff they mix up almost like a mortar...

* we are not sure if we will replace the old drain tile with pvc. likely not. we will definitelytake your advice on the fill.
thanks!

Monty · 06-12-2007, 11:48 PM

Quote:

Originally Posted by concretemasonry

Need more details to give you a good answer.

Have you done all of the normal necessary items to keep water away from the foundation like gutters, long (10') downspout extensions and positive drainage away from the house?

What type of foundation? - Concrete? concrete block?

Where is the water coming in?

What is a "divet"?

After you have done the exterior iems, you can seal the joint between the foundation wall and the concrete floor. - Are you in the east where they have a funny and now non-code trench around the concrete slab?

* we will be looking at the gutters for sure. when we fill in around the house again we will be sloping it properly as this was not done before. Our foundation is solid concrete. The water is coming in at the base where the wall and the footing meet. I suppose what I call a "divet" is a chunk out of the concrete wall - but i'm not sure if those can also be a point of moisture entry. We are in Alberta, and the way our foundation looks is: the wall comes down to meet a footing. the footing extends about 6 inches and then there is a trench where the weeping system is sunk down below the footing about 6 inches. I'm not sure if that is now non-code??

Thanks for your input!